90972040

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{6871}}^1$

素因数の和:7213

約数の個数: 32

約数和(自身を含む): 205335360

約数和(自身を除く): 114363320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1655, 2648, 3310, 6620, 6871, 13240, 13742, 27484, 34355, 54968, 68710, 137420, 274840, 2274301, 4548602, 9097204, 11371505, 18194408, 22743010, 45486020, 90972040]

約数ペア:

[(1, 90972040), (2, 45486020), (4, 22743010), (5, 18194408), (8, 11371505), (10, 9097204), (20, 4548602), (40, 2274301), (331, 274840), (662, 137420), (1324, 68710), (1655, 54968), (2648, 34355), (3310, 27484), (6620, 13742), (6871, 13240)]